Bluetooth Wireless Sleep Headphone, 3D Breathable Sleep Mask buying Headphone,

Product Name: Bluetooth Wireless Sleep Headphone, 3D Breathable Sleep Mask buying Headphone,
About this itemProduct details Description: Bluetooth sleep eye mask adopts V5.0 program, smart sleeping headphones bluetooth eye mask 3D breathable sleep headphones w/auto off timer music headset sleep mask, binaural stereo design, comfortable cotton fabric with comfortable and soft breathability. For people with symptoms ofsleep difficulties, they can let them slowly go to sleep while enjoying music, and can also reduce the outside world. The noise disturbance provides a quiet sleeping environment, whether it is work break or sleep at night, Bluetooth sleep eye mask can help improve sleep quality. Perfect travel nap gift for women men side sleepers. Model: 3D wireless headphone eye mask Bluetooth protocol: V5.0 Bluetooth connection: compatible with iOS, Android, Mac and Windows buying Frequency range: 20HZ-20KHZ Charging voltage: 3.7V-4.2V Sensitivity: 88DM Signal to noise ratio: 90db Speaker impedance: 32- 15% Speaker specifications: φ30mm.